HydroBASINS lev08 watershed · #3080473890
Bassin de Улья
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 2 administrative regions : Ayano-Mayskiy rayon, Okhotskiy rayon
Sub-basin area
2 226,8km²
Upstream area
3 605km²
Discharge
49,39m³/s
Mean elev.
703m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #3080488510934 km²
- Bassin · #3080488680444 km²
2 dept-equivalent regions (GADM L2)
- Ayano-Mayskiy rayonKhabarovsk · Russia1272.2 km²56.8% of basin
- Okhotskiy rayonKhabarovsk · Russia966.2 km²43.2% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
11 distinct species · 11 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Not enough documented interactions to build a meaningful graph for this territory.
Hydroclimate (BasinATLAS lev08)
Mean T°
-8,3°C
Annual rain
673mm
Moisture idx (CMI)
0,47
Runoff
402mm/an
PET
356mm
AET
352mm
Mean slope
13,4°
Water table
303cm
Forest
45%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)